Cultivator.



W. F. LAMP.

GULTIVATOR.

APPLICATION FILED SEPT.22,1915. 1,16,18.. Patented Dec.28,1915.

' a a SHEETS-SHEEI I.

WITNESSES: M INVENTOR 7 WLL/H/WFLHMR Q. a 9M MW.

ATTORNEYS W. F. LAMP.

CULTIVATOR.

APPLICATION FILED SEPT.22, 1915.

Patented Dec. 28, 1915.

3 SHEETS-SHEET 2.

WITNESSES:

W INVENTOR M/ILLMMF LHMP,

A TTOR/VEYS W. F. LAMP. CULTIVATOR.

APPLICATION FILED SEPT. 1,166,180 22 m5 Patented Dec.28,1915.

3 SHEETS-SHEET 3.

llllllllllllllllllll 1 5% Q WITNESSES: lNl/ENTOR I VWLL/WFLHMR ATTORNEVS U NTTD E PA WILLIAM FRED LAMP, OF MOI-ILER, WASHINGTON.

CULTIVATOR.

Application filed September 22, 1915.

To all whom it may concern Be it known that I, l/VILLIAM FRED LAMP, acitizen of the United States, and a resident of Mohler, in the county ofLincoln and State of Washington, have invented a new and usefulImprovement in Cultivators, of which the following is a specification.

My invention is an improvement in culti vators, and the invention hasfor its object to provide mechanism of the character specified, whereinthe cultivating mechanism is a series of co-ncavo-convex disks arrangedwith their convex faces upward and each provided with a radial vane onits upper face, the disks being mounted in the same plane on a wheelsupported frame and being driven from the wheels of the frame, and beingmounted on an auxiliary frame which is adjustable vertically withrespect to the main frame, the disks being arranged in a row and spacedapart from each other to permit the rows of plants to move betweenadjacent disks.

In the drawings :Figure 1 is a top plan view of the cultivator, Figs. 2,3 and 4: are sections on the lines 22, 33 and H respectively, of Fig. 1,Fig. 5 is a section on the line 5-5 of Fig. 4:, Fig. 6 is a perspectiveview of one of the cultivating tools, Fig. 7 is a perspective view ofone of the bearings, and Fig. 8 is a perspective view of one of theadjusting racks.

The present embodiment of the invention comprises a substantiallyrectangular frame consisting of front and rear members 1 and 2, and endmembers 3 connecting the front and rear members 1 and 2. A tongue 4: isarranged transversely of the front and rear members at the center of theframe, and an axle 5 is journaled between the front and rear members atthe center of the frame.

Wheels 6 are secured to the ends of the axle outside of the frame andthe axle is journaled in bearings 7, which depend from the bars 3. Bevelgears 8 are journaled loosely on the axle near the wheels but inside theframe, and each bevel gear carries a clutch section which is adapted tocooperate with a movable section 9, mounted on the shaft adjacent to thebevel gear, and feathered to the shaft as indicated at 10. These movableclutch sections are operated simultaneously to connect the bevel gearsto the axle or to disconnect them therefrom by means of a lever 11. Thislever 11 is provided with a laterally extending journal Specification ofLetters Patent.

Patented Dec. 22, 1915.

Serial No. 51,993.

pin 12, which is journaled in a bearing 13 on the tongue. The lower endof the lever engages one of the arms 1 1 of a three-armed rock lever,which is pivoted to a bracket 13 on a bearing block 16 secured to theunder face of the tongue. The other arms 17 and 17 of the lever extendin opposite directions, and the said arms are connected by links or rods18 with the movable clutch sections 9. Each section has an annulargroove and the outer end of each link is engaged in the groove of theadjacent clutch section. It will be obvious that when the lever 11 isswung in one direction it will simultaneously move the clutch sectionstoward each other and out of engagement with the fixed section on theadjacent bevel gear 8, while when the lever moves in the oppositedirection, it will move the clutch sections away from each other towardthe bevel gears and will connect them to the clutch section. Each bevelgear 8 meshes with a bevel gear 19 on a vertical shaft 20, which isjournaled in a bearing 21 on the adjacent end bar 3. The upper end ofeach of the vertical shafts 20 is provided with a sprocket wheel 22.

An auxiliary frame is supported below the main frame, the auxiliaryframe comprising front and rear members 23 and connecting cross members24 and bearings 25 are secured to the members of the frame at regularintervals by means of clips 26. The bearings are on the inner faces ofthe members 23 and 24, and each bearing 25 contains a bushing 27. Itwill be noted from an inspection of Fig. 7 that the bearings 25 aresectional, and that they are square in cross section. Each of thebushings 27 is also sectional, having an external polygonal crosssection and an internal circular section. The outer section of eachbearing 25 has a lateral extension 28 at its lower end, and theseextensions as shown in Figs. 2, 3 and 4: engage beneath the adjacentbars of the auxiliary frame. It will be noted that the frames arecomposed of angle material, each member of the frame consisting of ahorizontal and a vertical portion, and the horizontal portion isarranged at the outer side of the vertical portion and at the lower edgeof the same.

The outer section of each bearing 25 is provided above the extension 28with-a pair of vertically spaced laterally extending pins 29 and thesepins engage openings in the vertical portions of the frame members.

The inner section of each bearing 25 'is grooved transversely as shownat 30 in Fig."

7 to receive the clips 26.-

A shaft 31 is journaled in the bushing 27 of each of the bearings 25 andin an upper bearing 32 connected with the upper or main frame and inregister with the bearing 25. Each of these bearings 32 is similar tothe bearing 25 before mentioned, being sectional and having theextension 33 from the outer section, and having the pins 3+: forengaging the openings in the frame members 12 and 3.

The upper bearings are held to the frame members by clips 35,corresponding in character and arrangement to the clips 26. Each of theclips 26 and 35 is passed around. the adjacent bearing or 32, and theends are passed through openings in the vertical portion of the framemembers and are. engaged by nuts The pins 29 and 34 prevent displacementof the bearings and assist in centering the same. Each of the bearings32 has a sectional bushing 36, and each shaft 31 fits at its upper endin a sleeve 37, which is integral with a sprocket wheel 38, and extendsaxially therefrom. Keys 38 are arranged in registering key-ways in theshaft and in the sleeve to constrain the sleeve to turn with the shaft,but the shaft may move longitudinally with respect to the sleeve. Eachsleeve 37 and shaft31 constitutes a telescoping shaft, the inner memberbeing the shaft 31 and the outer member the sleeve 37. The sprocketwheels 38 are held at the same level and at'the level of the wheels 22before mentioned, that is, all the sprocket wheels 38 and 22 are in thesame horizontal plane, and an endless sprocket chain 39 is supported bythe sprocket wheels, and constrains them to move together. This chain 39engages every sprocket wheel 38 and in addition engages the sprocketwheels 22 and is driven by the said wheels 22 to rotate all of theshafts 31. Each of the shafts 31 has secured to its lower end aconcavo-convex disk 40, and the disks 40 are arranged with their convexfaces upward. Each disk is provided on its convex or upper face with aradial vane 41. Each vane is segmental in shape, and is provided with alateral flange 42 at its straight edge which is lapped upon the disk,and is secured thereto by rivets or the like.

The shafts 31 are constrained to move with the auxiliary frame 23-24 bymeans of fixed collars 43 on the shafts. These collars are arrangedabove and below the bearings 25, and it will be evident that when theframe is moved vertically, the shafts 31 and the disks 40 must move withthe frame. The auxiliary frame is moved by means of shafts 44. Theseshafts are arranged at the ends of the frame on the inner sides of theframe members 3, and. they are journaled in bearings 15 on bearingblocks'46, secured to the vertical portions of the end members 3 of themain frame.

A pair of gear wheels 47 is secured to each shaft 44: outside of thebearings 45, and each of the gear wheels il-7 engages a rack bar 48,secured to the auxiliary frame. Each of the rack bars is secured to thevertical portion of the adjacent end member 21 of the auxiliary frameand each rack bar meshes with the adjacent pinion. The shafts 44 areoscillated in unison from a shaft 19, which; is journaled longitudinallyof the frame in the end members and in the tongue. This shaft i9 isconnected to each of the shafts H by a bevel gear connection 50, and theshaft 19 is oscillated by means of a lever 51. The lever is rigid at itslower end with the shaft and it is provided with latch mechanism sector53 secured to the rear cross member 2. By means of the lever the shaftmay be oscillated to rotate the shafts 41. 1- and when these shafts arerotated the rack bars will be moved upward or downward, depending uponthe direction of rotation of the shaft 11-9.

A seat 5 1 may be connected with the main frame if desired, the seatbeing shown in dotted lines in Figs. land l. A double-tree 55 may beconnected with the tongue to permit the attachment of draft animals tothe cultivator.

In operation, the auxiliary frame is adj usted by means of the lever 51to cause the disks 40 to enter the ground at the desired depth. lVhenthe machine now is driven forward with the clutch sections 9 in meshwith the fixed sections of the bevel gears i it will be evident that theshafts 22 will be rotated and they will drive the chain 39, which inturn will drive the sprocket wheels 38, and the shafts 31 will berotated through the key connection 38. As the disks -10 are rotated theywill cut beneath the surface of the ground and the vanes 42 will stirthe ground as indicated in Figs. 2 and L. The weeds, grass and the likewill be cut beneath the surface of the ground and the vane will dislodgethem and will cover the weeds, grass, and the like, with earth. Theshafts 31 and the disks 4.0 are spaced apart from each other to permitthe passage of a row of plants without being damaged by the action ofthe disks.

The cultivator shown is provided with five disks, and it will be obviousthat four rows of corn may be cultivated simultaneously with a singlemachine. \Vhen it is desired to adjust the disks it is only necessary toswing the shaft 51 in the proper di rection. During transportation onthe road, the disks may be lifted out of contact with the ground.

It will be noted from an inspection of the drawing that two series ofdisks is provided,

52, which cooperates with a toothed o a front series and a rear series,and that the members of the series register.

I claim:

1. A cultivator, comprising a main Wheel supported frame, an auxiliaryframe arranged below the main frame, means for moving the said auxiliaryframe vertically with respect to the main frame and for holding it inadjusted position, a series of shafts journaled in the main andauxiliary frames in spaced relation, a series being arranged at thefront-of the frame and another series at the rear, and the members ofthe series registering, a concavo-convex disk on the lower end of eachshaft and arranged with its convex face upward, each disk having aradial vane on its upper face, each of the shafts being telescopic andconstrained to rotate together, the upper section being journaled on themain frame and the lower section on the auxiliary frame and each havingmeans for preventing longitudinal movement of the shaft with respect tothe frame, a sprocket wheel secured to the up per end of the uppersection of each shaft, a sprocket chain engaging all of the wheels,means operated by the wheels of the main frame for driving the chain,and means on the main frame and connected with the auxiliary frame forraising and lowering the same and for holding it in adjusted position.

2. A cultivator, comprising a main wheel supported frame, an auxiliaryframe arranged below the main frame, means for moving the said auxiliaryframe vertically with respect to the main frame and for holding it inadjusted position, a series of shafts journaled in the main andauxiliary frames in spaced relation, a series being arranged at thefront of the frame and anotherseries at the rear, and the members of theseries registering, a concavo-convex disk on the lower end of each shaftand arranged with its convex face upward, each disk having a radial vaneon its upper face, each of the shafts being telescopic and constrainedto rotate together, the upper section being journaled on the main frameand the lower section on the auxiliary frame and each having means forpreventing longitudinal movement of the shaft with respect to the frame,means for driving all of the shafts and connected with the uppersection, a connection between the driving means and the wheels, saidconnection being releasable, and means on the main frame for raising andlowering the auxiliary frame and for holding it in adjusted position.

3. A cultivator, comprising a main Wheel supported frame, an auxiliaryframe arranged below the main frame, means for moving the said auxiliaryframe vertically with respect to the main frame and for holding it inadjusted position, a series of shafts journaled in the main andauxiliary frames in spaced relation, a concavo-convex disk on the lowerend of each shaft and arranged with its convex face upward, each diskhaving a radial vane on its upper face, each of the shafts beingtelescopic and constrained to rotate together, the upper section beingjournaled on the main frame and the lower section on the auxiliary frameand each having means for preventing longitudinal movement of the shaftwith respect to the frame, means for driving all of the shafts andconnected with the upper section, a connection between the driving meansand the wheels, said connection being releaseable, and means on the mainframe for raising and lowering the auxiliary frame and for holding it inadjusted position.

4. A cultivator, comprising a main wheel supported frame, an auxiliaryframe arranged below the main frame, means on the main frame for raisingand lowering the auxiliary frame and for holding it in adjustedposition, a series of telescopic shafts journaled on the frames, eachconsisting of an upper section connected to the main frame and a lowersection connected to the auxiliary frame, the sections having means forconstraining them to rotate together, a common driving means for all ofthe shafts, a connection between the said means and the wheels fordriving the said means, and a concavo-convex disk on the lower end ofthe lower section of each shaft and arranged with its convex faceupward, and having a radial vane on its upper face.

5. A cultivator, comprising a main wheel supported frame, an auxiliaryframe arranged below the main frame, means on the main frame for raisingand lowering the auxiliary frame and for holding it in adjustedposition, a series of telescopic shafts journaled on the frames, eachconsisting of an upper section connected to the main frame and a lowersection connected to the auxiliary frame, the sections having means forconstraining them to rotate together, a common driving means for all ofthe shafts, a connection between the said means and the wheels fordriving the said means, and cultivating mechanism on the lower end ofeach shaft and rotatable therewith.

WILLIAM FRED LAMP.

Witnesses:

R. S. Rim), HARRY OoHs.

Copies 0*? this patent may be obtained for five cents each, byaddressing the Commissioner of Patents, Washington, D. G.

